Beetroot Vitamins: What's Actually In Beets (And What Actually Does the Work)

The Beetroot Vitamins Myth I Need to Clear Up First

I went looking for beetroot’s vitamin content expecting a nutritional monster. I’d read the marketing. Deep purple pigment, “superfood” labels, athletes chugging shots before races, supplement bottles promising vascular support and energy. So I pulled the USDA FoodData Central entry, ran the numbers per realistic serving, and sat there mildly disappointed.

Beetroot is, vitamin-wise, a fairly ordinary root vegetable. With one exception.

Here’s my thesis, stated bluntly before we go any further: if you’re buying beetroot for its vitamins, you’re buying it for the wrong reason. The vitamin C content is modest. Vitamin K is close to nonexistent in the root. There’s no B12, no vitamin D, barely any vitamin A. Beetroot’s entire scientific reputation, the reason it has hundreds of human trials behind it while turnips have roughly none, rests on two compounds that aren’t vitamins at all: dietary nitrate and betalain pigments.

The one genuine vitamin standout? Folate, vitamin B9. That one’s real, and it’s worth your attention.

What I’ll cover and where the evidence is strongest

Full nutrient table with percent daily values per actual serving. The nitrate to nitric oxide pathway, including the weird detail about your tongue bacteria. What the randomized trials show on blood pressure, exercise and cognition, and where the numbers are smaller than the headlines. Forms, dosing, side effects. And the beet greens, which almost nobody eats and which absolutely humiliate the root on vitamin content.

I’ll flag where the marketing outruns the data. There’s a fair bit of it.

Beetroot Vitamins and Minerals: The Complete Nutrient Breakdown

Let’s get the raw data on the table. Everything below is per 100 g of raw beetroot (about two-thirds of a cup, diced), from USDA FoodData Central, with %DV based on adult reference values.

Vitamin	Amount per 100 g raw	%DV
Folate (B9)	109 mcg DFE	27%
Vitamin C	4.9 mg	5-6%
Niacin (B3)	0.334 mg	2%
Pantothenic acid (B5)	0.155 mg	3%
Vitamin B6	0.067 mg	4%
Riboflavin (B2)	0.040 mg	3%
Thiamine (B1)	0.031 mg	3%
Vitamin A	33 IU (2 mcg RAE)	<1%
Vitamin E	0.04 mg	<1%
Vitamin K	0.2 mcg	<1%
Vitamin B12	0	0%
Vitamin D	0	0%

Read that vitamin K line again. Zero point two micrograms. I’ve seen beetroot supplement copy imply it’s a vitamin K source. It isn’t, not remotely. Same story for B12 and D, which no plant food provides in meaningful amounts without fortification. If a beetroot product claims B12 on the label, it was added.

The mineral profile nobody mentions

The minerals are quietly more interesting than the vitamins.

Mineral	Per 100 g raw	%DV
Manganese	0.329 mg	14%
Potassium	325 mg	7%
Magnesium	23 mg	5%
Phosphorus	40 mg	3%
Iron	0.80 mg	4%
Zinc	0.35 mg	3%
Copper	0.075 mg	8%
Sodium	78 mg	3%

Macros: roughly 43 kcal, 9.6 g carbohydrate, 2.8 g fiber, 6.8 g sugar and 1.6 g protein per 100 g. Beets are one of the sweetest vegetables by weight (sugar beets exist for a reason), but the fiber and the low total calorie load keep the glycemic impact modest in whole form. Juice is a different story, and I’ll get there.

Serving-size math, because %DV per 100 g is misleading

One cup of raw sliced beets is about 136 g. One cup of cooked, sliced beets is about 170 g. So:

• 1 cup raw beets: ~148 mcg folate (37% DV), 59 kcal, 442 mg potassium
• 1 cup cooked beets: ~136 mcg folate (34% DV), 75 kcal, 518 mg potassium, ~6 mg vitamin C
• 1 cup (240 mL) beet juice: folate varies wildly with processing, often 30-80 mcg, but nitrate content of 300-600 mg is the point of drinking it

Notice the vitamin C drops with cooking and processing. Folate is also heat-sensitive, losing roughly 20-40% with boiling, less with roasting or steaming.

The units trap in beetroot powder

This one irritates me. Look at a beet powder nutrition panel and the per-100-g numbers look glorious, eight to ten times the fresh root. Folate in the hundreds of micrograms, potassium over 2,000 mg. Impressive, until you remember beetroot is about 88% water and drying it just concentrated everything by removing that water.

A typical scoop is 5 g. That’s roughly 40 g of fresh beet equivalent. Which means about 44 mcg of folate. Not 400. Always check the per-serving column, never the per-100-g column, on any dried powder.

How beetroot stacks up against the leafy competition

Per 100 g raw	Beetroot	Spinach	Kale	Carrot
Vitamin K	0.2 mcg	483 mcg	~390 mcg	13 mcg
Vitamin A	33 IU	9,377 IU	~9,990 IU	16,706 IU
Vitamin C	4.9 mg	28 mg	93-120 mg	5.9 mg
Folate	109 mcg	194 mcg	~62-141 mcg	19 mcg
Nitrate	250-2,000 mg/kg	1,000-2,500 mg/kg	moderate	low

Beetroot is mid-pack on vitamins. It’s outclassed by spinach on nearly every line. Where it competes is nitrate density combined with palatability, storage life and juiceability, which is exactly why the sports nutrition literature runs on beet juice and not spinach smoothies.

Folate: The One Vitamin Beetroot Genuinely Delivers

A cup of raw beets gives you roughly 148 mcg DFE against an RDA of 400 mcg. That’s more than a third of your daily requirement from one vegetable serving. In a food supply where a lot of people are quietly scraping the bottom of the folate range, that matters.

Folate versus folic acid (not the same thing)

Folic acid is the synthetic, oxidized form used in fortification and cheap multivitamins. Your body has to convert it through dihydrofolate reductase before it becomes useful, and that enzyme has limited capacity in humans. Beetroot gives you naturally occurring food folates, largely 5-methyltetrahydrofolate, already in the bioactive family.

For people carrying MTHFR C677T variants (roughly 10-15% of many populations are homozygous), that difference is worth something. Their conversion machinery runs slower. Whole-food folate sidesteps part of the problem.

What folate actually does

Think of folate as the delivery van in a city full of construction sites. It picks up methyl groups at one end of the cell and drops them wherever they’re needed: DNA synthesis, red blood cell production, neurotransmitter manufacture, homocysteine recycling through the methionine cycle. Run the van out of fuel and a dozen jobs stall simultaneously, which is why folate deficiency shows up as macrocytic anemia, elevated homocysteine and fatigue all at once.

That homocysteine link is the cardiovascular angle. Adequate folate keeps homocysteine cleared, and elevated homocysteine tracks with vascular risk in observational data. The neural tube defect literature is even firmer, and it’s the reason 400 mcg daily is standard advice in pregnancy and preconception.

Practical takeaway: if you’re someone who doesn’t eat much spinach, lentils or liver, beets are a legitimate whole-food folate source. Roast them. Don’t boil the folate into the water and pour it down the sink.

Beet Greens Are the Actual Vitamin Powerhouse (Stop Throwing Them Out)

Here’s the part that genuinely annoyed me during the research. We’ve built an entire supplement category around the root and we compost the leaves, which are nutritionally superior in almost every way that involves the word “vitamin.”

Per 100 g of raw beet greens:

• Vitamin K: ~400 mcg (well over 100% DV, versus 0.2 mcg in the root)
• Vitamin A: ~6,300 IU as beta-carotene
• Vitamin C: ~30 mg (six times the root)
• Lutein and zeaxanthin: ~1,500 mcg, the carotenoids that concentrate in the macula and matter for long-term eye health
• Plus more potassium, magnesium and iron than the root

That’s not a small edge. That’s a different food.

Why supplement brands ignore them

Simple commerce. Greens wilt in days, they’re bulky to ship, they lose most of their weight on drying, and they carry less nitrate per gram than the root does. A supplement company optimizing for nitrate content and shelf stability picks the root every time. The vitamins were never the selling point.

Cook them like chard: garlic, olive oil, hot pan, three minutes, squeeze of lemon. They freeze fine if you blanch them first. Cheapest nutrition upgrade in the produce aisle, and you already paid for them.

One caution. If you’re on warfarin, that 400 mcg vitamin K load will move your INR. The answer isn’t avoidance, it’s consistency. Eat a similar amount week to week rather than swinging from none to a huge bowl.

The Real Active Ingredients Behind the Hype (Hint: Not Beetroot Vitamins)

So if the vitamins are mediocre, why does beetroot have thousands of trials behind it?

Two answers: nitrate and betalains.

The nitrate to nitric oxide pathway, simply

Beetroot accumulates inorganic nitrate from soil, typically 250 to 2,000 mg per kilogram fresh weight. That’s an enormous range, and it depends on cultivar, soil nitrogen, fertilizer regime, season and even the part of the root. Which is exactly why I push people toward products that state nitrate content in mmol per serving rather than just listing “beetroot extract 500 mg.” Without standardization you’re guessing.

The pathway runs like this. You swallow nitrate, it’s absorbed in the small intestine, and roughly 25% of it gets actively concentrated by your salivary glands and pumped back into your mouth. Bacteria living on the back of your tongue (commensal species that possess nitrate reductase enzymes, which your own cells lack) reduce that nitrate to nitrite. You swallow the nitrite. Stomach acid and various tissue enzymes then convert it to nitric oxide, the signalling molecule that relaxes vascular smooth muscle, widens blood vessels and improves the oxygen cost of muscle contraction.

Your body runs this loop deliberately. It’s an oxygen-independent backup route for making nitric oxide, and it works best exactly when the usual enzymatic route struggles, in low-oxygen and acidic tissue.

Your tongue bacteria are the rate-limiting step

This sounds like a footnote. It’s not.

Govoni and colleagues demonstrated it in Nitric Oxide (2008): give people a nitrate dose, then have them use an antibacterial chlorhexidine mouthwash, and the plasma nitrite rise is blunted and the blood pressure drop essentially disappears. Kill the bugs, kill the effect. Later work has confirmed the same pattern with mouthwash use and even shown links between heavy antiseptic rinse use and higher blood pressure.

Practical rule I actually follow: no antibacterial mouthwash on beet days. Especially not within a few hours of the dose. Brush your teeth, sure. Skip the chlorhexidine.

Betanin, vulgaxanthin and the pigment story

The other half of the beet is its colour. Betalains are nitrogen-containing pigments split into two families: betacyanins like betanin (that red-violet stain on your cutting board) and betaxanthins like vulgaxanthin (yellow-orange). Kanner and co-workers characterized their radical-scavenging behaviour in the Journal of Agricultural and Food Chemistry back in 2001, and the antioxidant activity is measurable, not hypothetical.

Betalains are not vitamins. There’s no RDA, no deficiency state, no essentiality. But they’re a big part of why whole beetroot juice behaves somewhat differently in trials than an equivalent dose of isolated sodium nitrate, particularly on inflammation and muscle damage markers.

My working analogy: nitrate is the fuel, your oral microbiome is the spark plug, betalains are the additive package. Remove any one and the engine runs worse.

What Beetroot Actually Does in the Body: The Trial Evidence

I’ll be straight about where the data is strong and where it’s decoration.

Blood pressure: the strongest data by far

This is the flagship, and it holds up. Siervo et al. published a meta-analysis in the Journal of Nutrition (2013) pooling 16 trials, and inorganic nitrate and beetroot juice produced a systolic reduction of roughly 4.4 mmHg. Diastolic moved less, around 1.1 mmHg, and not consistently.

Four millimetres doesn’t sound thrilling. At population scale it’s the sort of shift that meaningfully bends stroke and coronary event curves, and it’s comparable to what you’d get from a serious sodium reduction effort.

The mechanistic landmark came earlier. Webb and colleagues, writing in Hypertension (2008), gave healthy volunteers 500 mL of beetroot juice and tracked the response hour by hour. Blood pressure fell, the drop peaked around 2.5 to 3 hours post-dose, and the timing tracked plasma nitrite almost perfectly. That’s not a correlation you can hand-wave away.

Worth knowing: the effect appears larger in people with elevated baseline blood pressure than in normotensive volunteers. Which is convenient, since those are the people who need it.

Exercise performance and oxygen economy

The dose-response work matters most here. Wylie et al., in the Journal of Applied Physiology (2013), tested 4.2, 8.4 and 16.8 mmol of nitrate. Benefits on oxygen cost and exercise tolerance appeared at 8.4 mmol and then flattened. Doubling to 16.8 bought almost nothing extra. That 8.4 mmol figure (roughly 520 mg nitrate) is the number every credible product should be targeting, and many don’t come close.

For performance magnitude, Lansley’s 2011 work in Medicine & Science in Sports & Exercise reported about a 2.8% improvement in cycling time-trial performance. Small in absolute terms. In a 4 km time trial, meaningful.

Now the honest part. The responder gap is real and it’s large. Highly trained endurance athletes, the ones with already-optimized nitric oxide signalling and high type I fibre proportions, show reduced or absent effects. Recreational and moderately trained exercisers respond best. If you’re an elite cyclist expecting 3%, temper that. If you’re a weekend 10k runner, the odds are better.

Brain blood flow and cognition

Presley and colleagues used MRI in Nitric Oxide (2011) to show increased perfusion in frontal lobe white matter in older adults following a high-nitrate breakfast. Interesting, biologically plausible, and a single small study. I’d file it under “promising mechanism, not established benefit.” Cognitive outcome trials since then have been mixed and mostly underpowered.

Inflammation, soreness and recovery

Several small trials of betalain-rich beetroot juice have reported reduced delayed-onset muscle soreness and lower creatine kinase after eccentric exercise protocols, with Clifford’s group producing much of that work. Sample sizes run in the 10-30 participant range. Directionally encouraging, statistically fragile.

For the broad picture, Clifford et al. (2015, Nutrients) is still the best single review of beetroot’s health applications, and I’d point anyone who wants the full literature there first.

Where the evidence is thin, and I’ll say so plainly

Liver detoxification claims: not supported by human trials. Betaine has some genuine liver-related biochemistry behind it, but “detox” as marketed is not a measured outcome in any beetroot RCT I can find.

Cancer prevention: betanin shows activity in cell culture and some rodent models. There is no human trial evidence. Selling that gap as a benefit is dishonest.

“Blood building” and iron claims: beetroot has 0.8 mg iron per 100 g, which is unremarkable, in the poorly-absorbed non-heme form. The folate helps red cell formation, genuinely, but beets are not a treatment for anemia.

That’s three popular claims with essentially nothing behind them, sitting on the same bottles as three claims with solid randomized evidence. Sorting them is most of the work.

How Cooking, Juicing and Storage Change the Beetroot Vitamins You Actually Get

Here’s the part almost nobody mentions on a supplement label: the number on the nutrition panel and the number that reaches your bloodstream are two different figures, and cooking method explains most of the gap.

Boiling is the worst thing you can do to a beet

Folate is heat-labile and water-soluble, which is the unlucky combination. Nitrate is water-soluble too. Boil peeled, diced beets for 30 minutes and you’ve built an excellent nitrate-folate broth, then poured it down the sink. Losses in the 30-50% range for folate are routine in cooking-retention data for boiled vegetables, and nitrate leaches even faster because it’s a small, highly mobile ion.

If you boil, keep the water. Use it as stock. That’s not a fussy chef tip, it’s nutrient recovery.

Roasting, steaming and pressure cooking compared

Betalains (the pigments doing the antioxidant work) start degrading somewhere around 60-70°C and are additionally sensitive to oxygen, light and pH. That’s the chemistry behind the visual: a long-roasted beet fades from that violent crimson to a dull brick brown. The colour is the compound. When the colour goes, so has a chunk of the betanin.

My best-to-worst ranking for total retention:

1. Raw and grated
2. Fresh-juiced
3. Steamed
4. Roasted whole, skin on
5. Pressure cooked
6. Boiled, peeled and diced

Practical stuff. Leave the skin on and about 2 cm of stem attached, which limits how much leaches out of the cut surfaces. Add a squeeze of lemon before or after cooking, because betalains hold their structure better in mildly acidic conditions. Cut after cooking, not before.

Does juicing lose the fibre and the folate?

Juicing costs you the fibre (2.8 g per 100 g of beet, gone with the pulp) but keeps the nitrate and folate almost entirely, since both live in the cell water. That’s exactly why juice is the format nearly every trial used. If the lost fibre bothers you, bake the pulp into muffins or stir it into a bolognese. I do the latter.

Storage, oxidation and why powders go brown

Cut beets oxidise. Whole beets in the fridge crisper keep for weeks. Powder is the wild card: spray-dried at high inlet temperatures, you lose betalain and a meaningful share of nitrate; freeze-dried or low-temperature dried, you keep far more. Deep magenta powder is a rough but useful visual proxy for quality. Brown-pink powder has been cooked, stored badly, or both.

Whole Beets vs Juice vs Powder vs Capsules vs Gummies

This is where money gets wasted, so let’s do arithmetic instead of marketing.

Nitrate delivered per serving, compared honestly

Form	Typical serving	Approx. nitrate delivered	Sugar	Convenience	Cost / 30 days
Whole cooked beets	200-250 g	250-450 mg (4-7 mmol)	12-18 g	Low	$8-12
Standard beet juice	250-500 mL	300-400 mg (5-6.5 mmol)	20-40 g	Medium	$30-60
Concentrated shot	70 mL	350-400 mg (5.5-6.5 mmol)	8-12 g	High	$50-90
Powder (quality, standardised)	5-10 g	100-400 mg (varies wildly)	2-5 g	High	$25-40
Capsules	2 x 500 mg	5-25 mg	0	Highest	$20-35
Gummies / chews	2-4 gummies	Trace	6-10 g	Highest	$25-45

Nitrate content in whole beets swings by a factor of three or more depending on soil nitrogen, variety and season, which is why the ranges are wide and why I trust standardised products over produce when the goal is a specific dose.

The capsule problem

I’ll be blunt here, because the arithmetic isn’t debatable. Beetroot powder typically runs 0.3-1.5% nitrate by weight at the high end for a good low-temperature product. Two 500 mg capsules is 1,000 mg of powder. At 1% nitrate, that’s 10 mg. The trials used 400 mg. You’d need roughly 40 capsules to reach the dose in Lansley’s or Wylie’s protocols.

Forty. Per day.

So when a capsule bottle quotes performance research on the label, it’s citing evidence generated at forty times the dose in the bottle. That’s not a nuance, that’s a category error.

Concentrated ‘shots’ and what you’re paying for

The 70 mL shots are the most trial-faithful format available at retail, and they work. You’re paying a premium for concentration, standardisation and portability, and at $2-3 a shot it adds up fast. If you’re dosing daily for blood pressure over months, shots are the expensive route. If you’re dosing before three hard sessions a week, they’re the sane route.

Cost per effective dose

Cheapest effective option: whole beets, cooked properly, eaten in inconvenient quantities. Roughly 30 cents a dose. Best compromise: a powder that states nitrate content per scoop, around $1 a day. Worst value by a mile: capsules and gummies, where you pay for the aesthetic of supplementation and get essentially none of the pharmacology.

Dosage and Timing: How Much Beetroot, and When

The 6.4-8.4 mmol nitrate target

Convert the units once and it all gets easier: 6.4 mmol of nitrate is about 400 mg. Most performance trials landed between 5 and 9 mmol, and Wylie’s dose-response work (Journal of Applied Physiology, 2013) found 8.4 mmol outperformed 4.2 mmol, with the jump to 16.8 mmol adding little. So the ceiling is real and it’s lower than you’d guess.

Acute dosing before exercise

Dose 2 to 3 hours before you need it. Webb and colleagues mapped the kinetics in Hypertension (2008): plasma nitrite climbs after the oral bacteria do their reduction work and peaks in that 2-3 hour window. Take a shot 20 minutes before your warm-up and you’ve mostly missed the point.

Chronic dosing for blood pressure

Daily dosing beats single dosing for blood pressure. Trial designs running 4 to 15 days consistently show larger cumulative effects than acute protocols, and Kapil’s 4-week study in hypertensive patients (Hypertension, 2015) is the cleanest demonstration that the effect holds rather than fading.

How long until you notice anything

• Blood pressure: measurable shift within 2-3 hours of a single dose. Meaningful, stable change over 2-4 weeks of daily use.
• Performance: often measurable from the first correctly timed dose.
• Soreness and recovery: if it happens, expect several days of loading first.

Now the part people ignore and then wonder why nothing happened. Antibacterial mouthwash wipes out the oral nitrate-reducing bacteria you depend on, and Kapil’s 2013 work showed chlorhexidine rinsing blunts the whole pathway. Same logic for antiseptic gum and aggressive tongue scraping. Proton pump inhibitors reduce gastric acid, which is where nitrite converts to NO. If you’re on a PPI, expect a weaker response.

Upper limits: EFSA’s acceptable daily intake for nitrate is 3.7 mg/kg/day, roughly 260 mg for a 70 kg adult. Note that this figure was built around nitrosamine formation in cured meats, not vegetable nitrate, and beets arrive packaged with vitamin C and polyphenols that inhibit nitrosamine formation. Trials have exceeded that ADI for weeks without safety signals. I don’t treat it as a hard ceiling for vegetable sources.

My recommendation: 400 mg nitrate daily (about 6.4 mmol) from juice or a standardised powder, taken in the morning for blood pressure or 2.5 hours pre-session for performance. That’s the number I’d use myself.

How to Read a Beetroot Supplement Label (5 Red Flags)

No stated nitrate content

Red flag one, and the biggest. If the label says “beetroot root powder 2,000 mg” and nothing else, walk. Nitrate is the active compound. A brand that doesn’t measure it can’t control it, which means batch-to-batch you’re buying a lottery ticket.

Proprietary blends

Red flag two: “Nitric Oxide Matrix, 3,500 mg” with beetroot buried between citrulline, arginine and AAKG. You cannot tell whether you’re getting 50 mg of beetroot or 2,000 mg. Blends exist to hide ratios. That’s their function.

‘10:1 extract’ with no explanation

Red flag three. Ten to one of what? Concentration ratios are meaningless without a marker compound. A 10:1 extract standardised to 2% nitrate tells me something real. A bare “10:1” tells me the marketing team wrote the label.

Third-party testing and heavy metals

Red flag four: no certificate of analysis. This matters more with beets than with most botanicals, because root vegetables concentrate soil cadmium and lead by design. That’s what roots do. I want batch-level heavy metal testing, not a vague “quality tested” badge.

What a good label actually looks like

Red flag five is any label citing Lansley or Wylie while delivering a tenth of their dose.

A good label states: nitrate in mg per serving, exact scoop weight in grams, drying method (freeze-dried or low-temperature), batch number matched to a downloadable COA, and no added sugar. Five things. Most brands manage none of them.

Side Effects, Beeturia and Who Should Be Careful

Pink urine is harmless (mostly)

Beeturia hits roughly 10-14% of people and it’s benign in itself. Betanin passes through unmetabolised, urine turns pink or red, everyone panics for a minute. Here’s the genuinely useful detail: recurrent beeturia has been associated with iron deficiency and with low gastric acidity, both of which affect betalain breakdown. So if you suddenly start turning pink when you never used to, it’s a mild prompt to check ferritin.

Oxalates and kidney stones

Beetroot is a moderate-to-high oxalate food, with beet greens higher still. If you’ve had a calcium oxalate stone, daily concentrated beetroot is a bad idea. If you eat it anyway, pair it with a calcium source in the same meal (yoghurt, cheese) so the oxalate binds in the gut instead of the kidney.

Blood pressure medication and nitrate interactions

Additive vasodilation is a mechanistic reality, not a theoretical worry. Stack 400 mg nitrate daily on top of an ACE inhibitor, a calcium channel blocker, glyceryl trinitrate or a PDE5 inhibitor like sildenafil, and you can get symptomatic hypotension: dizziness on standing, headache, that grey-out feeling. The effect sizes are modest individually and they add.

GI effects and the FODMAP angle

Beets contain fructans, putting them at moderate FODMAP status. Drink 500 mL of juice on an empty stomach and bloating or loose stools are common, not rare. Split the dose or move it to alongside food.

Two more facts worth holding: beetroot is high in potassium, which is relevant in advanced kidney disease, and while the folate is a genuine plus in pregnancy, concentrated nitrate supplements have not been studied in pregnant women at all. Eat the vegetable, skip the shots.

My Verdict: Should You Take Beetroot for the Vitamins?

The honest answer

No. Don’t buy beetroot for the beetroot vitamins. The vitamin profile is mediocre, and I’ve said so throughout: 109 mcg of folate per cup is the only entry worth a mention, and a handful of spinach beats it. Buy beetroot for nitrate and betalains, and treat the folate as a bonus that came free in the box.

Who gets the most out of it? People with elevated or high-normal blood pressure. Recreational and moderately trained endurance exercisers. Adults over 50, whose endogenous NO production has declined and who have the most headroom to gain.

Who should skip it? Elite endurance athletes (already near-saturated, response is smaller). Anyone with a calcium oxalate stone history. And anyone already eating a large serving of leafy greens daily, because you’re getting the nitrate already.

A 4-week protocol worth trying

400 mg nitrate (6.4 mmol) daily, morning, from juice or a nitrate-standardised powder. No antibacterial mouthwash for the duration. Take a home BP reading morning and evening for three days before you start to establish a baseline, then twice weekly after.

How to know if it’s working for you

Two markers. Home BP: a drop of 4-6 mmHg systolic is what the trials predict, and it’s detectable with a decent cuff. And perceived exertion on one fixed route at one fixed pace, rated 1-10 each week. If neither budges in four weeks, you’re a non-responder. Stop and spend the money on vegetables.

Frequently Asked Questions About Beetroot Vitamins

What does beetroot do in the body, and is it really a vitamin supplement?

Beetroot works mainly through dietary nitrate, not vitamins. Nitrate converts to nitric oxide, which relaxes blood vessels, lowers blood pressure and improves oxygen efficiency during exercise. Its vitamin content is modest: decent folate, small amounts of vitamin C and B6. So no, it isn’t a vitamin supplement in any meaningful sense. Calling it one is marketing shorthand for a product whose real actives are nitrate and betalain pigments.

How does beetroot work? What is the nitrate-to-nitric-oxide pathway?

Nitrate from beets is reduced to nitrite by bacteria on your tongue, then to nitric oxide in the acidic stomach and in low-oxygen tissues. Nitric oxide widens blood vessels and reduces the oxygen cost of muscle contraction. The oral bacteria step is non-negotiable, which is why antibacterial mouthwash blunts the entire effect, as Kapil’s group demonstrated in 2013.

Is beetroot safe to take every day?

Yes, for most people, at the doses used in trials. Studies have run 400-800 mg nitrate daily for up to 4 weeks without adverse findings. Watch for additive hypotension if you take antihypertensives or PDE5 inhibitors, oxalate load if you’ve had kidney stones, and potassium if you have advanced kidney disease. Pink urine is harmless.

What is the best dosage of beetroot or beetroot powder?

Around 400 mg of nitrate, roughly 6.4 mmol, per day. That equals about 250-500 mL of juice, one 70 mL concentrated shot, or 200-250 g of cooked beets. For powder, the answer depends entirely on the product’s stated nitrate content, which is why unstandardised powders are unusable for dosing. Dose-response plateaus above 8.4 mmol.

How long does beetroot take to work?

Blood pressure shifts within 2-3 hours of one dose; sustained change takes 2-4 weeks of daily use. Performance effects can appear from the first properly timed dose, taken 2-3 hours before exercise, since plasma nitrite peaks in that window. Recovery and soreness benefits, where they occur, generally need several days of loading.

Which vitamins are actually in beetroot, and how much of each?

Per 100 g of raw beetroot: about 109 mcg folate, 4.9 mg vitamin C, 0.067 mg vitamin B6, 325 mg potassium and 0.8 mg iron. Folate is the standout at roughly 27% of the daily value per cup. Vitamin C is unimpressive and largely lost to cooking. There’s no vitamin A, D, E, K or B12 worth counting.

Is beetroot juice better than beetroot powder or capsules?

Juice is the best-validated format, quality standardised powder is the best value, and capsules are close to useless. Two 500 mg capsules deliver perhaps 10-25 mg nitrate against a trial dose of 400 mg. You’d need dozens of capsules daily. Powder works only if the label states nitrate per scoop. Gummies are sugar with a beet-coloured story.

Does cooking beets destroy the vitamins and nitrate?

Boiling causes the biggest losses; steaming and roasting whole with the skin on preserve much more. Folate and nitrate are both water-soluble and leach into cooking water, and betalain pigments degrade above roughly 60-70°C. Keep the skin and 2 cm of stem on, cut after cooking, add lemon juice, and save the cooking liquid for stock.

Why does beetroot turn my urine pink, and should I worry?

Beeturia affects 10-14% of people and is harmless in itself. Betanin pigment passes through unmetabolised and colours the urine red or pink for a day. Worth noting: recurrent beeturia has been linked to iron deficiency and low stomach acid, so a new onset is a reasonable cue to have your ferritin checked. Red stool from beets is equally benign.

Can I take beetroot with blood pressure medication?

It’s mechanistically additive, so expect a larger drop than either alone. Beetroot nitrate and antihypertensives both promote vasodilation, and stacking them can produce dizziness, headache or lightheadedness on standing. The same applies to nitrate medications and PDE5 inhibitors such as sildenafil. Monitor with a home cuff if you combine them, and start at a lower nitrate dose.

Are beet greens more nutritious than the beetroot itself?

Yes, considerably, on almost every vitamin measure. Beet greens carry far more vitamin K, vitamin A precursors, vitamin C and magnesium than the root, and they’re also nitrate-rich. They’re higher in oxalate too, which matters for stone formers. If you buy beets with tops attached, cooking the greens is the better nutritional decision. Most people bin them.

Does beetroot contain vitamin B12 or vitamin D?

No. Beetroot contains neither. Vitamin B12 comes from animal foods and fortified products; vitamin D comes from sun exposure, oily fish and fortification. No plant root supplies either in meaningful amounts. Any beetroot product listing B12 or D on its panel has added them synthetically, which is fine, but it isn’t beetroot doing the work.

The Last Word

I came into beetroot expecting to write a debunking piece, and I ended up half-convinced. The vitamin story is genuinely oversold, and I’ll keep saying that: the beetroot vitamins on the panel are a footnote, and folate is the only line worth reading. But the nitrate evidence is a different animal. Two large meta-analyses, consistent 3-5 mmHg systolic reductions, a mechanism mapped down to the bacteria on your tongue, and performance data reproducible enough that professional teams use it.

So here’s my recommendation, without hedging. Skip the capsules and the gummies entirely. Buy a nitrate-standardised powder or concentrated shots, take 400 mg of nitrate daily for four weeks, stop the antibacterial mouthwash, and measure your own blood pressure before and after. If the numbers move, you’ve found a $30-a-month intervention with a real effect size. If they don’t, you’re a non-responder and you’ve learned that for the price of one month’s supply.

That’s a better deal than most things on the supplement shelf.

Frequently Asked Questions